DE69818636D1 - LIGHTING UNIT AND LIQUID CRYSTAL DISPLAY DEVICE - Google Patents

LIGHTING UNIT AND LIQUID CRYSTAL DISPLAY DEVICE

Info

Publication number
DE69818636D1
DE69818636D1 DE69818636T DE69818636T DE69818636D1 DE 69818636 D1 DE69818636 D1 DE 69818636D1 DE 69818636 T DE69818636 T DE 69818636T DE 69818636 T DE69818636 T DE 69818636T DE 69818636 D1 DE69818636 D1 DE 69818636D1
Authority
DE
Germany
Prior art keywords
liquid crystal
display device
crystal display
lighting unit
lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69818636T
Other languages
German (de)
Other versions
DE69818636T2 (en
Inventor
Hendrik Wessels
Het Veld Hubertus Op
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69818636D1 publication Critical patent/DE69818636D1/en
Application granted granted Critical
Publication of DE69818636T2 publication Critical patent/DE69818636T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers
    • H01J61/307—Flat vessels or containers with folded elongated discharge path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/01—Fluorescent lamp circuits with more than two principle electrodes
DE69818636T 1997-11-07 1998-10-29 LIGHTING UNIT AND LIQUID CRYSTAL DISPLAY DEVICE Expired - Fee Related DE69818636T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97203461 1997-11-07
EP97203461 1997-11-07
PCT/IB1998/001726 WO1999025001A1 (en) 1997-11-07 1998-10-29 Illumination unit and liquid crystal display device

Publications (2)

Publication Number Publication Date
DE69818636D1 true DE69818636D1 (en) 2003-11-06
DE69818636T2 DE69818636T2 (en) 2004-08-05

Family

ID=8228911

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69818636T Expired - Fee Related DE69818636T2 (en) 1997-11-07 1998-10-29 LIGHTING UNIT AND LIQUID CRYSTAL DISPLAY DEVICE

Country Status (6)

Country Link
US (1) US6094015A (en)
EP (1) EP0951730B1 (en)
JP (1) JP2001507824A (en)
CN (1) CN1121707C (en)
DE (1) DE69818636T2 (en)
WO (1) WO1999025001A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3688915B2 (en) * 1998-11-27 2005-08-31 株式会社 日立ディスプレイズ Liquid crystal display device
DE19945758A1 (en) * 1999-09-24 2001-03-29 Philips Corp Intellectual Pty Gas discharge lamp
DE10014407A1 (en) 2000-03-24 2001-09-27 Philips Corp Intellectual Pty Low pressure gas discharge lamp
KR100418490B1 (en) * 2000-05-18 2004-02-11 가부시키가이샤 히타치세이사쿠쇼 Liquid crystal display device having an improved backlight
KR100392181B1 (en) * 2000-12-18 2003-07-22 주식회사 엘에스텍 Discharge lamp and the back light unit applying the same
US7084583B2 (en) * 2001-06-25 2006-08-01 Mirae Corporation External electrode fluorescent lamp, back light unit using the external electrode fluorescent lamp, LCD back light equipment using the back light unit and driving device thereof
JP2003017005A (en) * 2001-06-27 2003-01-17 Harison Toshiba Lighting Corp Low-pressure discharge lamp
CN1465211A (en) * 2001-07-16 2003-12-31 哈利盛东芝照明株式会社 Dielectric barrier discharge lamp operating device
EP1415325A1 (en) * 2001-08-02 2004-05-06 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp
WO2003015127A1 (en) * 2001-08-06 2003-02-20 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamps
US20030142487A1 (en) * 2002-01-29 2003-07-31 Chi Mei Optoelectronics Corp. Liquid crystal display device and backlight module thereof
US6940233B2 (en) * 2002-10-03 2005-09-06 Analog Microelectronics, Inc. Method and system of driving a CCFL
KR100459234B1 (en) * 2002-12-24 2004-12-03 엘지.필립스 엘시디 주식회사 A Back light
KR101050328B1 (en) * 2004-08-31 2011-07-19 엘지디스플레이 주식회사 Lamp and backlight driving device having the same
US20060125424A1 (en) * 2004-12-10 2006-06-15 Analog Microelectronics, Inc. Single ground scheme for CCFL circuitry
KR101078479B1 (en) * 2004-12-30 2011-10-31 엘지디스플레이 주식회사 Lamp for back light
CN101151706A (en) * 2005-03-30 2008-03-26 皇家飞利浦电子股份有限公司 Discharge lamp and backlight unit for backlighting a display device comprising such a discharge lamp
EP1943637A2 (en) * 2005-10-25 2008-07-16 Koninklijke Philips Electronics N.V. Backlight unit
JP4645508B2 (en) * 2006-03-31 2011-03-09 パナソニック電工株式会社 Backlight device and lighting device
CN2927599Y (en) * 2006-04-21 2007-07-25 飞利浦(中国)投资有限公司 Voltage signal outputting circuit, ballast and illuminator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE155876C (en) *
NL8503008A (en) * 1985-11-04 1987-06-01 Philips Nv DC AC CONVERTER FOR IGNITION AND POWER OF A DISCHARGE LAMP.
US4751434A (en) * 1986-07-28 1988-06-14 Helling James C Self-illuminated sealed cool light display and method
AR244867A1 (en) * 1987-11-27 1993-11-30 Hartai Julius Lighted panel.
NL8800478A (en) * 1988-02-25 1989-09-18 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
DE3940506A1 (en) * 1989-12-07 1991-06-13 Vdo Schindling TWO PARALLEL SWITCHED LIGHTING DEVICES HAVING IDENTICAL LAMPS
US5220249A (en) * 1990-10-08 1993-06-15 Nec Corporation Flat type fluorescent lamp and method of lighting
US5325024A (en) * 1992-10-16 1994-06-28 Gte Products Corporation Light source including parallel driven low pressure RF fluorescent lamps

Also Published As

Publication number Publication date
WO1999025001A1 (en) 1999-05-20
CN1249064A (en) 2000-03-29
EP0951730B1 (en) 2003-10-01
US6094015A (en) 2000-07-25
EP0951730A1 (en) 1999-10-27
JP2001507824A (en) 2001-06-12
CN1121707C (en) 2003-09-17
DE69818636T2 (en) 2004-08-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee